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+// NLFunc.h                                                -*- C++ -*-
+/*
+
+Copyright (C) 1992, 1993 John W. Eaton
+
+This file is part of Octave.
+
+Octave is free software; you can redistribute it and/or modify it
+under the terms of the GNU General Public License as published by the
+Free Software Foundation; either version 2, or (at your option) any
+later version.
+
+Octave is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+for more details.
+
+You should have received a copy of the GNU General Public License
+along with Octave; see the file COPYING.  If not, write to the Free
+Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#if !defined (_NLFunc_h)
+#define _NLFunc_h 1
+
+#ifdef __GNUG__
+#pragma interface
+#endif
+
+#include <iostream.h>
+#include "Matrix.h"
+
+#ifndef Vector
+#define Vector ColumnVector
+#endif
+
+typedef Vector (*nonlinear_fcn) (Vector&);
+typedef Matrix (*jacobian_fcn) (Vector&);
+
+class NLFunc
+{
+public:
+
+  NLFunc (void);
+  NLFunc (const nonlinear_fcn);
+  NLFunc (const nonlinear_fcn, const jacobian_fcn);
+
+  NLFunc (const NLFunc& a);
+
+  NLFunc& operator = (const NLFunc& a);
+
+  nonlinear_fcn function (void) const;
+
+  NLFunc& set_function (const nonlinear_fcn f);
+
+  jacobian_fcn jacobian_function (void) const;
+
+  NLFunc& set_jacobian_function (const jacobian_fcn j);
+
+protected:
+
+  nonlinear_fcn fun;
+  jacobian_fcn jac;
+
+};
+
+#endif
+
+/*
+;;; Local Variables: ***
+;;; mode: C++ ***
+;;; page-delimiter: "^/\\*" ***
+;;; End: ***
+*/